diff options
| author | Hannes Reinecke <hare@suse.de> | 2014-03-15 09:51:49 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2014-03-27 08:25:33 -0700 |
| commit | b3ae8780b42918111387240762f470d5c1e269d6 (patch) | |
| tree | f3791a3002248327f6f72a9335a275b123e06dab /drivers/scsi/scsi_scan.c | |
| parent | bc8945df3c27e8edaa6a6de47cb20df7d12b80c8 (diff) | |
| download | linux-b3ae8780b42918111387240762f470d5c1e269d6.tar.gz | |
[SCSI] Add EVPD page 0x83 and 0x80 to sysfs
EVPD page 0x83 is used to uniquely identify the device. So instead of having each and every program issue a separate SG_IO call to retrieve this information it does make far more sense to display it in sysfs. Some older devices (most notably tapes) will only report reliable information in page 0x80 (Unit Serial Number). So export this in the sysfs attribute 'vpd_pg80'. [jejb: checkpatch fix] [hare: attach after transport configure] [fengguang.wu@intel.com: spotted problems with the original now fixed] Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 4109530e92a0..27f96d5b7680 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -970,6 +970,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, } } + if (sdev->scsi_level >= SCSI_3) + scsi_attach_vpd(sdev); + sdev->max_queue_depth = sdev->queue_depth; /* |